THE VISCO ENGINEERING CO., LTD.,
162, GROSVENOR ROAD, LONDON, S.W.I.
LiMt No. 243
THE functions of water cooling plants need
not be enlarged upon; they arc well known.
Wherever water is deficient in quantity
and even in quality, they form a necessary
adjunct to modern power plants in connection with
steam oi .-movers, air-com-
pressors. . ; the like.
CcK)ling Towers are sometimes looked upon
as necessary evils; itisneverthelessof importance to
give to thisend of the power plant as much attention
as to boilers and t ^ • so that the whole may
blend intoahomo^ ut returning the highest
for a iiiijiiujuni capital outlay. Our
ivrfv li.^v 3 I<>n0er :md mnrc extensive
*- than any
placed at the dispo&ai ot custoi
The most usual apparatus tur cooling u ju-i u
THE CHIMNEY COOLING TOWER
T and 7 give ta-
tJ^ , -, , .- ,^:. Now an^ i.ivrii the
towers art made of other material, such a* steel
I NO. 51. '
• VISCO" COOLhNo TOWER hN COURSE OF ERECTION
THE VISCO EXGINEERING CO.. LTD
concrete or brick, but on the whole, the very con-
siderably increased first cost is not justified by the
longer life obtained. The tower itself is of rect-
angular or polygonal shape and should, of course,
be of ample size (this is often sinned against) to
pass the mixture of air and vapour resulting from
efficient cooling. We have paid special attention
to an efficient and accurate water distribution
which is effected by venturi nozzles and splash
plates ; these being made of glazed porcelain are
practically indestructible. The cooling bars or
hurdles are of remarkable strength, and are rigidly
held in position and supported without the use of
nails. They cannot warp or sag, and at the same
time the design is such that a most intmiate mix-
ture of air and water is obtained with a maximum
cooling surface and a minimum resistance. Special
precautions are taken by suitably arranged wind
screens and partitions to ensure that all parts of the
cooling stack receive an ample and equal supply of
air from the atmosphere. In short, our design com-
bines the qualities required of an up-to-date cooling
tower, and represents :
Strength with low capital cost;
Efficiency and reliability.
Where space is valuable, or altogether insuffi-
cient for the duty required, we recommend the
'^VISCC SUPER COOLING TOWER
which occupies Httlc more than half the space of a
standard cooler, and is particularly suitable for large
units. The design is unique, and the efficiency far
ahead of any other construction in wood. Although
more expensive than the standard cooler, if the cost
I I VISCO .
•VISCO- CHIMNhV COOLING TOWER AT SOUTH WALES POWER STATION.
THE VISCO ESGISEERISr, CO., LTD.
of foundation and ^pacc is taken inti> consideiatum.
a saving in capital outlay can. in most casc>. be
For smaller installation's. particiilail\ where
space need nor be economiseil. and also in cases
where the lowest possible water tcmpeiatiires will
iiave to be obtained.
THE OPKN TVPK eOOLKR
is largely used ; an example oi which is represented
by illustration No. 54. To all intents and pur-
poses, these open type coolers consist of the interior
of a chimney cooler without the chimney itself, rely-
ing largely on riie natural air currents to produce
the requisite mixture of air and water. Air is never
still, and even a comparatively slight movement
will pass the volume of air required to obtain the
desired cooling effect. In most cases, the structure
IS surrounded b\ Iou\ res to pi event undue splash-
ing of spray upon the surrounding property at high
consisting of a system of cast iron pipes proffering
the water to be cooled thr« " les
upwards into the atinosphei. , in.
can he used with advantage whetc- space is pientitul.
and particularlv where large ponds already exist.
the cooling efficiency of which requires supple-
menting. Properly dimensioned, they give an
efficient service, although more dependent on
natural air currentji and more wasteful, as more
water is lost by evap>oration. particularly from the
large surface of the pond
"VISCO" CHIMNEY COOLING TOWER AT CARDIFF CORPORATION
POWER STATION. CAPACITY 340,000 GALLONS PER HOUR.
THE VISCO ESGiSEERlSG CO LTD.
■ VISCO ■ OPEN TYPE COOLER AT FAVERSHAM LLECrklC ITY WORKS
We also manufacture ''VISCO" AIR FILTERS
for Turbo-Alternators. Motors. Air Compressors,
Ventilating Plants. Complete Ventilating, Air-
Conditionmg and Heating Plants.
IHE VJSCO ESGISEERISG ((J LI h
162. GROSVESOR ROAD. LOS DOS II I